roarcher a day ago

Maybe I'm missing something but this just seems to be a guy playing with magnets? In the "Demonstration of Ion Propulsion" video, he shows how the magnet "shoots" through the ring, but it's just the release of potential energy from forcing the opposing poles together in the first place. It's like those "permanent magnet rail guns" people post on YouTube. I don't see what's novel about it.

lazylester a day ago

beneath the fancy graphics there's zero explanation of how these are manufactured, how they're constructed, or the magnetic field patterns. No actual deployments or demonstrated applications, just graphics. It's a 3-person company that "expects to begin testing of this exciting new technology early in the 2nd quarter of 2023".

hazbot a day ago

Don't talk about it, be about it.

JumpCrisscross 2 days ago

What advantage would this have over a rotary Hallbach array?